694spd
Well-Known Member
Can anyone tell me if this flywheel looks like a neutral balance one or one for an external balance motor?
Flywheel Balance?
- Thread starter 694spd
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Is it a 143T wheel? Looks like the ones that I've pulled from 400 4-spd 72-78 Trucks.
Actually looks a little different other than the fly cut.
694spd
Well-Known Member
Mine is a 10.5" 130 tooth wheel.
Maybe from a 72-4 400 4-spd car.
That looks to be a 70 -71 130 tooth heavy rod flywheel for a 440 six pack engine .
694spd
Well-Known Member
Interesting... It's a little hard to read the scans that you posted. Is the scallop at the 6:00 position on the engine side of the flywheel in my picture indicate that it is for a exterior balance engine such as the 440 heavy rod engines were?
AJ/FormS
68 Formua-S fastback clone 367/A833/GVod/3.55s
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Pretty sure that is too big to fit a passenger car BH.
Have you actually counted the teeth?
Have you looked it over very closely for a casting number?
Most all my neutral balanced 10.5 130 tooth flywheels have the scalloped cut. The thing that lets me believe it is a 440 six pack or heavy rod flywheel is the two small balance holes it has drilled completely through as stated on the first page I posted above.
694spd
Well-Known Member
No, but I will count the teeth tomorrow to be sure.
I have not seen a casting number, but I will double check.
Thanks for posting the larger picture. I never noticed those extra two drilled thru hoses.
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What are those numbers? I don't have any wheels with me. 13.25" dia.=130T and 14.75" dia.=143T. It's something like that.
Casting number will tell you the diameter but not the balance.
Casting number will tell you the diameter but not the balance.
I have several forged crank 340 flywheels here and all have the scallop cut in the front.
Flywheel is 70-2 440 magnum or 6pk. Externally balanced for those engines only. The 2 holes circled in RED is the dead give away.
69b7bbgts
Well-Known Member
Hi Jon
What book is that from? Thank you.
Rat Bastid
Dunamis Metron
I believe that comes out of the big Chrysler engine book. I have three of them and I know it’s in the two early ones. The earliest I have is 1979 and I try and not fiddle with it much because I wore that thing out.
The other one is from the mid 1980’s IIRC and I had to put that one into a 3 ring binder to keep it together.
The newest one I have is the last one published that I know of.
I know it’s in the first two, probably in the manual transmission section of the book.
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